From 7c50e57b83089f7f98475b13cb3da3c417862eb1 2018-10-29 05:37:14
From: drtyhlpr <its_sead4@gmx.de>
Date: 2018-10-29 05:37:14
Subject: [PATCH] Added: Information about QEMU emulation
---

diff --git a/README.md b/README.md
index 14baf39..6446108 100644
--- a/README.md
+++ b/README.md
@@ -100,6 +100,9 @@ Set default system timezone. All available timezones can be found in the `/usr/s
 ##### `EXPANDROOT`=true
 Expand the root partition and filesystem automatically on first boot.
 
+##### `ENABLE_QEMU`=true
+Generate kernel (`vexpress_defconfig`), file system image (`qcow2`) and DTB files that can be used for QEMU full system emulation (`vexpress-A15`). The output files are stored in the `$(pwd)/images/qemu` directory. You can find more information about running the generated image in the QEMU section of this readme file.
+
 ---
 
 #### Keyboard settings:
@@ -449,6 +452,23 @@ If you have set `ENABLE_SPLITFS`, copy the `-frmw` image on the microSD card, th
 bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie-frmw.img /dev/mmcblk0
 bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie-root.img /dev/sdc
 ```
+
+## QEMU emulation
+Start QEMU full system emulation:
+```shell
+qemu-system-arm -m 2048M -M vexpress-a15 -cpu cortex-a15 -kernel kernel7.img -no-reboot -dtb vexpress-v2p-ca15_a7.dtb -sd ${IMAGE_NAME}.qcow2 -append "root=/dev/mmcblk0p2 rw rootfstype=ext4 console=tty1"
+```
+
+Start QEMU full system emulation and output to console:
+```shell
+qemu-system-arm -m 2048M -M vexpress-a15 -cpu cortex-a15 -kernel kernel7.img -no-reboot -dtb vexpress-v2p-ca15_a7.dtb -sd ${IMAGE_NAME}.qcow2 -append "root=/dev/mmcblk0p2 rw rootfstype=ext4 console=ttyAMA0,115200 init=/bin/systemd" -serial stdio
+```
+
+Start QEMU full system emulation with cryptfs, initramfs and output to console. (NOT WORKING yey!) :
+```shell
+qemu-system-arm -m 2048M -M vexpress-a15 -cpu cortex-a15 -kernel kernel7.img -no-reboot -dtb vexpress-v2p-ca15_a7.dtb -sd ${IMAGE_NAME}.qcow2 -initrd "initramfs-${KERNEL_VERSION}" -append "root=/dev/mapper/secure cryptdevice=/dev/mmcblk0p2:secure rw rootfstype=ext4 console=ttyAMA0,115200 init=/bin/systemd" -serial stdio
+```
+
 ## Weekly image builds
 The image files are provided by JRWR'S I/O PORT and are built once a Sunday at midnight UTC!
 * [Debian Stretch Raspberry Pi2/3 Weekly Image Builds](https://jrwr.io/doku.php?id=projects:debianpi)